Welcome to Recursion Visualization

Please read the folowing programming code for a static method for recursion to find factorial of a number in Java and try to answer the two questions:

public class  Fac
 { 	public static void main(String [ ]args)
	{	System.out.prinln(5+"!=" + factorial(5));
	}

	public static int factorial(int n)
	{ 	if(_ _ _ _ ) 
			return 1;
		else
		{	int result = n * factorial(n - 1);
			return result;
		}
	}
}